diff --git a/etl/load.py b/etl/simple_load_example.py
similarity index 100%
rename from etl/load.py
rename to etl/simple_load_example.py
diff --git a/etl/tests/test_pre_site_note_class.py b/etl/tests/test_pre_site_note_class.py
index a354cfa..143a4f7 100644
--- a/etl/tests/test_pre_site_note_class.py
+++ b/etl/tests/test_pre_site_note_class.py
@@ -18,4 +18,12 @@ def local_survey(pre_site_note_path):
 
 def test_assessor_accreditation(local_survey):
     """Test that the assessor accreditation number is correct."""
-    assert local_survey.pre_site_note.assessor_information.accreditation_number == "QUID211435"
\ No newline at end of file
+    assert local_survey.pre_site_note.assessor_information.accreditation_number == "QUID211435"
+
+
+def test_floor_area_calculator(local_survey):
+    # Floor area is important to work out invoice, make a test to work out invoice correctly
+    print(local_survey)
+    raise NotImplementedError("Yo - junte do some work here")
+
+
diff --git a/run_tests.sh b/run_tests.sh
new file mode 100644
index 0000000..c7c20e0
--- /dev/null
+++ b/run_tests.sh
@@ -0,0 +1 @@
+poetry run pytest